Good Question: Why do soccer players wear what looks like sports bras?

They're actually not sports bras.
They're actually not sports bras.

Sports bra - Wikipedia

Sports bras for NRL players are a must

Sport Bra - Utilibra-VO - rabbit

Whats included? Package includes GPS Performance Tracker, STATSports Seamless Sports Bra, Charging Cable and access to the STATSports Apex Athlete

STATSports Womens APEX Athlete Series GPS Soccer Activity Tracker Stat Sports Football Seamless Performance Bra Wearable Technology

Women's Sports Bra Fit Guide. Nike SI

The tried and tested guide to finding the right sports bra for you

Why Do Soccer Players Wear Bras?

INTRODUCING UA'S MOST INNOVATIVE SPORTS BRA YET

The Sports Bra Seen Round the World Has New Meaning 20 Years Later - The New York Times

Why Do Footballers Wear Bras?

Footballers don't 'wear bras' - sporting reasons for under-shirt clothing explained

Sports Bra Sizing: How To Get The Best Support From Your Sports Bra

Euro 2020: Why do footballers wear 'bras'?, Football

Best Sports Bras 2024 - Forbes Vetted

Why did Stanford players wear sports bras to beat IU? It's way cooler.